poor service

I've been a client at Cell for as long I can remember. However, the service that I've been receiving has been very poor. I was called by a Cell C agent about a data plan because I so top up data on my existing contract. I told him that I'm not employed so I cannot take on any new contracts, he assured me that it was month to month and far cheaper on what I am currently spending. The account was activated a 24-month data sim contract only which I think is daylight *******. Now I can't cancel the contract unless I pay the cancellation fee. To take it further my conversation with the agent was in Afrikaans and now understands the call apparently. It has been almost 3 months, and no one has answers. I only receive reference numbers with a turnaround time of 24 to 48 hours, but no one comes back. My last email was 6 days ago. What do I do??